to it. >> reporter: you saw that woman had her little one in her arms. also in the car, we understand. the long island expressway is back open today in this area east of new york city in shirley, new york. a big rig, we now know, somehow smashed into several vehicles at first. that set off the chain reaction. sending cars across several hundred yards of the eastbound lanes. one person died, 33 others hurt. and this detail surfacing, that big rig was hauling debris from superstorm sandy. as you may know, long island communities were hit hard in october. at one point some of the vehicles in the crash caught fire. one burned beyond recognition. police looking into why the tractor-trailer that started this whole thing with the first batch of cars hit those cars. jon? jon: and there wasn't snow or fog or anything like that, just -- >> reporter: you know, i haven't read anything weather related. again, they are looking into what caused that initial crash, but so far there's nothing on the roadway to lead you to say, aha, okay, it was fog dwi. we don't know yet. jon: harris faulkner, thanks.